{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682798637",
    "entityType": "User",
    "nonce": "0xed8f8c28128749aecec3c6c8232eeb69b8dae50caa3a526dbb58b6c3c7d94c9e",
    "signature": "0x97b38c524ec1daf411d78ac52731b6cb3ce6bfded9ffe3a1c0ec5c4a040a8bd1655cb7ae1fe916a675e87d17ba2ab520e8b679b9a801aa9a2c1e34584b4caca91b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}